rezdiver wrote:tonydca wrote:FYI just got back from Princess Auto - They have 1/2" shackles with a 2 Ton WLL for $1.99 each. Made in China of course, but what isn't these days...
I have a couple on some loops of 1.5 Ton WLL nylon webbing. Small and light to keep in the van; worked great pulling an Infiniti QX56 back onto the road near the top of Cypress Mtn this past weekend.
With matched load limits, the webbing should be the first thing to break under load, keeping all the metal bits attached to their respective vehicles...
EDIT: Unlike these doofuses (doofi?) :
http://www.google.ca/#hl=en&biw=1151&bi ... e8e55e4f5f
not sure if the theory you are using there is a good one but you should be good for a "very" light load. a 2000 pound car stuck in the snow may take forces well over the rigging you have there. a non certified china shackle at 2t rating and depending on the strap quality at 1.5t, it all depends on the safety factor built into each piece, the shackle could still break before the strap.
you can pick up larger properly rated certified shackles with a name brand like crosby for a couple of bucks more. and princess auto has 10ton straps on sale for 15 dollars.
I hear what you're saying; the whole topic is a pretty big can of worms.
My thoughts at the time were to try and pick the right tool for the job.
I have a rope for towing someone (not stuck) which is immensely strong - 12T WLL I think. In this case, I don't plan to put undue strain on the whole assembly, so I don't want the rope to fail under any circumstances (likely from dirt/wear/chafing/etc.)
But judging from videos like the one I linked to, trying to yank someone free is more likely to damage a part of your vehicle, so I wanted this (different) rigging to fail in a controlled manner before anything else.
So strap fails before shackle, and shackle fails (properly dead-weighted to the strap) before the bumper/tow point gets damaged. 'Cuz if the latter happens, you're really pooched.
Since I posted this earlier, I've seen some very well-designed recovery gear in use, and ultimately, I think a good quality kinetic recovery rope is the way to go if you don't want to mess around. But still - there should be an engineered failure point somewhere.
Perhaps it is the tires losing traction coupled with a maximum speed on the recovering vehicle when you yank it out.
Ask a dozen experts and I'm sure I'd get a dozen answers

Cry "Havoc!" and let slip the elementary-school-aged boys...